Influence of Rosemary Extract Addition in Different Phases on the Oxidation of Lutein and WPI in WPI-Stabilized Lutein Emulsions

Table 1

First-order reaction rate constant for heat degradation of lutein emulsion with different concentrations and addition methods of rosemary extract.

Different concentration and addition methods of rosemary extract in lutein emulsion	k (h^−1)	R^2
Control	4.04 × 10^−3	0.9304
0.02 wt.% in the oil phase	2.05 × 10^−3	0.9619
0.05 wt.% in the oil phase	0.81 × 10^−3	0.9077
0.1 wt.% in the oil phase	1.57 × 10^−3	0.9421
0.05 wt.% in the water phase	2.34 × 10^−3	0.8796